Buy 2021 Gmc Sierra 2500 HD 6.6L Duramax V8 DIESEL A/T RWD SLT Crew Cab Pickup Leaf Spring Insulator. 3 - OEM Gmc Part # 84474225 (15247030, 15604067, 20870046)

Leaf spring insert. Leaf Spring Insulator.
Insulator used for the Leaf spring. Included with: Leaf spring.

Leaf Spring Insulator

Fits Canyon, Colorado, Sierra 2500 HD, Sierra 3500 HD, Silverado

3/4 TON W/INCREASED PAYLOAD, 1 TON, w/dual rr wheels. W/O ZR2, AT4X. W/O ZR2, ZR2 BISON. W/ZR2, AT4X. W/ZR2, ZR2 BISON.
Suspension Leaf Spring - Repair or Replace
Your leaf springs are not especially prone to failure, but excessive rust can make them more prone to failure. Contact your local GMC service department to have the suspension system in your 2021 GMC Sierra 2500 HD evaluated and have the leaf springs replaced if necessary.